Question relating to the manipulation of matter on an atomic, molecular, and supramolecular scale.

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14 views

How do I prepare the following solution I found in a research paper?(Details given below) [on hold]

So I came across this research paper to synthesize nanoparticles and I want to replicate the experiment they did.Here is their experimental procedure(in their words) : 1.FeCl2·4H2O and FeCl3·6H2O ...
0
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1answer
41 views

What is the main difference between Quantum Clusters and Nanoclusters? [closed]

I know that Quantum Dots have high quantum yield and ranges from 2nm-10nm, and Nanoclusters have high fluorescence and ranges from 1nm-10nm. But the difference between them is that Quantum Dots ...
5
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0answers
33 views

Which mechanics or law is predominately seen in nanoscale

Nanotechnology and sciences are the study or the manipulation of matter on an atomic, molecular, and supramolecular scale especially at nano meter range. We know that at macro molecular level a system ...
4
votes
1answer
70 views

Palladium Nanocube

What is the relative permittivity and relative permeability of a palladium nanocube? If I change the size of this $\ce{Pd}$ nanocube, will these values be changed or remain the same?
2
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1answer
28 views

Solvent effect on gold nanoparticle and silver nanoparticle in UV spectroscopy?

Can anyone explain to me that how solvent factor affect the wavelength and intensity of gold nanoparticle and silver nanoparticle in UV spectroscopy?
3
votes
2answers
103 views

How do I setup the electrodes for cyclic voltammetry on a capacitor made on dry copper sheets?

I'm trying to measure capacitance of a cell I'm creating. It's composed of two copper-sheets with nano-material coated on one side, sandwiched with a membrane and wetted with $\ce{KOH}$. All of the ...
2
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0answers
21 views

What can I use instead of AOT in the following protocol?

We want to nanoencapsulate our pesticide using the following protocol; but we don’t have AOT surfactant. So, what can I use instead of AOT in the following protocol? Sodium alginate solution in ...
2
votes
1answer
57 views

What significance and applications does nanotechnology have in chemistry? [closed]

Specifically concerning organic chemistry, but an explanation on its significance and applications in inorganic chemistry would be great as well.
2
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1answer
61 views

Which sodium citrate is used in silver nanoparticles production?

In my studies, I have a group project to realise: to make some $\ce{Ag}$ nanoparticles using Turkevich method (boiling $\ce{AgNO3}$ with sodium citrate in water). In most of articles authors write ...
1
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0answers
43 views

How photoluminescence (PL) spectroscopy works

Photoluminescence (PL) spectroscopy is used to find the energy levels in a compound but how does PL spectroscopy works? After exciting a material with a particular wavelength whether PL machine looks ...
11
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1answer
672 views

Why carbon nanotubes can act as a good electrical conductor?

Bulk carbon is an insulator, but at nanoscale (e.g. carbon nanotubes) carbon may become a good electrical conductor. If I am correct this means carbon nanotube band structure is metal-like. E.g. it ...
1
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0answers
23 views

How to calculate “accurate” surface area of a microporous material using Micromeritics equipment?

How do I get an accurate surface area from a nitrogen isotherm? I've been doing some surface areas on MOFs and upon showing my boss the isotherms he asked me to convert them to show the "range", ...
1
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0answers
30 views

How to calculate concentration of hydrogel nanoparticles

I have prepared hydrogel nanoparticles in aqueous solution. How to calculate concentration of hydrogel nanoparticles ?
1
vote
1answer
72 views

Permanent Balloon?

Is it possible to create a container for helium that it can't permeate through, like a permanent balloon? Or, if not, what kind of material would have the lowest permeability for that application? I ...
1
vote
1answer
34 views

What kind of interacion is there between a nanoparticle and its functionalizing coating?

The functionalization of nanoparticles (with coatings such as polymer ligands; see image) are very common (for example, DNA-functionalizied gold nanoparticles). What's the type of interaction between ...
2
votes
0answers
33 views

Are there economical ways of synthesizing nanotubes?

I've heard Nanotubes will replace Li-ion batteries in the future and it is much more relevant. I just wanted to know could it really replace Li-ion batteries? Is synthesizing nanotubes economic?
7
votes
2answers
100 views

What is Nano Zinc Oxide?

First of all, I have zero chemical background, but I seek for an easy explanation about Nano Zinc Oxide. I was told that the name of "Nano Zinc Oxide" couldn't possibly exist. Instead, it should be ...
2
votes
1answer
48 views

extracting carbon nanotubes from graphite

I am searching for the carbon nano tubes for very low cost.I have one idea about the graphite which is in the tip of the pencil, can be converted as the carbon nano tubes.is it possible? if it is ...
0
votes
1answer
15 views

Does STED microscopy allow us to see reactions happening on a substrate

This years nobel prize for chemistry went to nanoscopy using STED as a control mechanism. I have seen the atoms/molecules of a lattice vibrating as shown by Stefan W Hell in a presentation at some ...
5
votes
2answers
240 views

Conversion of one atom to another to get the element of the latter atom in abundance

One child who is in 9th standard has claimed to have find a solution to all practical physical problems. On asking for details, he said that all periodic elements has common components, i.e. ...
2
votes
2answers
340 views

Intermolecular forces in Carbon Nanotubes?

What are the intermolecular forces that can be found in Carbon Nanotubes?
1
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1answer
43 views

Letting Copper sit in NaOH for 5 min (for monolayer assembly)

i made a self-assembled monolayer of dodecanethiol on copper, before that i let the copper in a solution of $\ce{NaOH}$ for 5 min, and i need to know what this step is for, anyone can help me?
3
votes
0answers
54 views

Synthesizing monodisperse PbS quantum dots

For a research project, I am trying to synthesize lead (II) sulfide quantum dots using the method of Li et al.. I am injecting sulfur dissolved in 1-octadecene into a mixture of $\ce{PbO}$, oleic ...
0
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1answer
57 views

Is there a good sol gel method for carbon nanotube thin film deposition?

I was searching for a sol gel method for deposition of carbon nanotube thin films and there aren't too many articles on that. Does anybody know the reason? Is it because Carbon nanotubes are ...
3
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0answers
54 views

TiO2 nanotube application in cement

I am perparing for a presentation on the application of TiO2 nanotubes in cement which is a recent topic in cement chemistry. Do you happen to have any papers (or know of any accessible on Internet) ...
2
votes
2answers
303 views

Whats the difference between graphite,nanotubes,and fullerenes?

I understand that all of these are made up of Carbon but I don't understand what differentiates them, since it is Carbon they all must be covalent bonds right?
2
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1answer
175 views

Producing Gold nano flakes

In terms of producing gold nano flakes, Guo et al. have mentioned in their journal, they added aniline to the solution of chloroauric acid in ethylene glycol at 95 degree Celsius. However, I couldn't ...
6
votes
1answer
244 views

What are simple applications of Monte Carlo simulations in chemistry, that can be done in Matlab?

I am trying to learn simulation myself and I have installed Matlab on my machine for that purpose. In web I have gone through some of the basics of Monte Carlo simulation, but I am unable to find a ...
3
votes
2answers
207 views

Gold nanoparticles in a water/oil environment

I am currently investigating the assembly of gold nanoparticles in a mixture of water and oil. The thing is the following: If we have gold nanoparticles (35nm diameter) dispersed in water and we put ...
7
votes
2answers
6k views

What is the difference between graphite oxide and graphene oxide?

I am considering making a sheet of graphene using the LightScribe technique and I have read that I need graphite oxide. However when I look up graphite oxide for sale, graphene oxide pops up. Are ...
3
votes
4answers
352 views

large wavelength range and list of x/y numerical data points of elements

I'm trying to get a set of FTIR or (FTIR like range) x/y numerical data points for a couple of elements, namely Silver, Platinum, Palladium, Gold and Sodium. I've looked on line and found images ...
3
votes
1answer
44 views

What is the mechanism of functionalisation of nanoparticle using long chain alcohols

How can long chain alcohols(not thiols) be functionalised on the surface of silver or gold nanoparticles? I have read in an article that Polyvinyl alcohol is used as a capping agent for silver ...
6
votes
2answers
411 views

Why do shape and size have the greatest effect on the optical properties of nanoparticles?

The LSPR properties of nanoparticles depend on a number of factors, including shape, size, material, crystal structure, dielectric environment, etc. However, it has been consistently shown that shape ...
3
votes
1answer
101 views

Simulation of a particle and chemical molecule

I am currently studying the basics of simulation and want to try out some experiments. It is a known fact that gold nanoparticles can bind to chemical groups which contains thiol (R–SH group). I want ...
5
votes
1answer
824 views

What is burst nucleation?

Can you tell me what is a burst nucleation process, and how can it be used for synthesising uniform nanoparticles? Can you also provide (if possible) any links to papers or materials regarding ...
5
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1answer
2k views

What is the bandgap value of SiO2?

Using Diffuse Reflectance Spectroscopy, I have obtained the band gap for $\small\ce{SiO2}$ (purchased from a chemical retailer) in the range of 3.25 to 4.75 eV. I would like to know if the values ...
3
votes
1answer
107 views

Can nanotechnology reduce electrode losses in electrochemical cells?

I'm just curious about this topic, as most portable, "clean" energy sources or carriers (in the sense of not being a primary energy source -fuel cell hydrogen, for example) are in essence ...
7
votes
1answer
160 views

What does the charge distribution around a Stone-Wales defect look like?

I'm reading a book on carbon nanotubes (P.J.F. Harris, Carbon Nanotube Science, to be specific) at the moment and puzzling about Stone-Wales or 5775 defects. This is where two adjacent carbons undergo ...